GPU Interop Example: Adjust Render Exposure#
RTX Renderer Postprocess Example: adjust the exposure of the rendered image. The node can be used in a post-render graph to change the brightness of the rendered image. As a CUDA interop node, the node is scheduled for execution as a CUDA command. If the input RenderVar is not a valid texture, the node does not produce a result.
Installation#
To use this node enable omni.graph.image.nodes in the Extension Manager.
Inputs#
Name |
Type |
Descripton |
Default |
|---|---|---|---|
RenderVar Data (inputs:cudaMipmappedArray) |
|
The RenderVar data, defined as a CUDA Mipmapped Array. |
0 |
Exposure (inputs:exposure) |
|
Exposure value (in stops). Positive values increase the brightness of the image, while negative values result in darker images. The default exposure value of 0 results in an unmodified image. Increasing the value by one unit, results in a doubling of the exposure and a brigher image; decreasing the value by one unit results in a halving of the exposure, thus a darker image. |
0 |
Texture Format (inputs:format) |
|
The texture format of the input image, matching the values of the enum carb::graphics::Format. |
0 |
Height (inputs:height) |
|
The height of the input image. |
0 |
Renderer Time (inputs:hydraTime) |
|
The delta time of the renderer in stage. |
0.0 |
Mip Count (inputs:mipCount) |
|
The number of levels of detail encoded in ‘RenderVar Data’. |
0 |
Simulation Time (inputs:simTime) |
|
The delta time of the simulation. |
0.0 |
Stream (inputs:stream) |
|
The CUDA Stream used to order the CUDA commands scheduled by this graph execution. |
0 |
Width (inputs:width) |
|
The width of the input image. |
0 |
Metadata#
Name |
Value |
|---|---|
Unique ID |
omni.graph.examples.cpp.GpuInteropAdjustExposure |
Version |
2 |
Extension |
omni.graph.image.nodes |
Has State? |
False |
Implementation Language |
C++ |
Default Memory Type |
cpu |
Generated Code Exclusions |
None |
uiName |
GPU Interop Example: Adjust Render Exposure |
Categories |
examples,graph:postRender,rendering |
Generated Class Name |
OgnGpuInteropAdjustExposureDatabase |
Python Module |
omni.graph.image.nodes |